Unknown disease causes woman to grow fingernails instead of hair

In 2009, student Shanyna Isom experienced an allergic reaction to a steroid treatment she received for an asthma attack. Since then, she's been afflicted by a medical disorder that's left physicians at Johns Hopkins University stumped. What was initially mistaken for eczema and a staph infection has left Isom with… »8/10/12 12:35pm8/10/12 12:35pm

Redheads experience pain differently than the rest of us

It's melanin Monday (not a real thing — but it should be), time to brush up on your knowledge of all things pigment-related! People with fair skin and rosy locks get their distinctive looks from mutations in the gene that codes for melanocortin 1 receptor, a protein that aids in the synthesis of the pigment melanin;… »3/05/12 10:00am3/05/12 10:00am